package com.huangsm.book.designmodel;

/**
 * @author huang
 * @PACKAGE_NAME com.huangsm.book.designmodel
 * @PROJECT_NAME concurrence
 * @date 2019/2/15
 */
public class DBQuery implements IDKQuery {
    public DBQuery(){
        try {
            //可能包含数据库连接等操作
            Thread.sleep(1000);
        }catch (Exception e){

        }
    }
    @Override
    public String request() {
        return "request string";
    }
}
